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access icon free Inspection of electrical wires for insulation faults and current surges using sliding temperature sensor based on optical Microfibre coil resonator

© The Institution of Engineering and Technology
Received 09/10/2012, Published

Presented is a compact and robust temperature sensor based on an optical microfibre to coil resonator packaged around a Teflon tube. The probe can efficiently slide along electrical wires to map the local temperature for locating insulation faults and reporting high current surges. A temperature responsivity of 95 pm/°C up to ∼80°C was demonstrated. This sensor is potentially low cost and simple to fabricate, making it attractive for domestic and industrial applications.

Inspec keywords: optical resonators; inspection; micromechanical resonators; coils; temperature sensors; wires (electric); fault diagnosis

Other keywords: current surges; optical microfibre coil resonator; temperature responsivity; inspection; sliding temperature sensor; insulation faults; electrical wires; Teflon tube

Subjects: Thermometry; Thermal variables measurement; Micromechanical and nanomechanical devices and systems; Microsensors and nanosensors

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